Discusses semantic issues in defining emotions. Describes important constructs derived from major theories of emotionality. Examines social-psychological and biological changes associated with aging in the context of these theories. Reviews available data on emotionality and aging, describing experimental attempts at manipulating the emotional…

Specifies some problems in the Piagetian characterizations of assimilation and accommodation and offers an alternative formulation intended to resolve some conceptual anomalies. On the basis of the revision, the orthogenetic law of developmental progression is explicitly derived. Further, Piaget's notion of "equilibrium" is extended into…

In a discussion of psychological development separate sections are devoted to (1) biological and cultural influences on development, (2) development in infancy, early childhood, middle childhood, and adolescence, (3) physiological foundations of behavior, (4) motivation and cognitive development, (5) intellectual development, (6) imagination and…

The work of four task forces on human deprivation is reported. Aspects of deprivation treated include psychosocial deprivation and personality development; influences of biological, psychological, and social deprivations upon learning and performance; socialization and social structure; and biological substrates of development and behavior. For…